石油学报 ›› 2006, Vol. 27 ›› Issue (1): 101-105.DOI: 10.7623/syxb200601022

• 石油工程 • 上一篇    下一篇

聚醚多元醇钻井液研制及应用

吕开河, 邱正松, 徐加放   

  1. 中国石油大学石油工程学院 山东东营 257061
  • 收稿日期:2005-01-20 修回日期:2005-04-04 出版日期:2006-01-25 发布日期:2010-05-21
  • 作者简介:吕开河,男,1970年12月生,1998年获石油大学(华东)硕士学位,现为中国石油大学(华东)在读博士研究生,主要从事井壁稳定、保护油气层及油田化学剂开发方面的研究工作.E-mail:lvkaihe@vip.sina.com
  • 基金资助:
    国家"十五"科技攻关项目"油田化学品产业化开发及应用示范"(2002BA312B)资助.

Polyether polyatomic alcohol drilling fluid and its application

Lü Kaihe, Qiu Zhengsong, Xu Jiafang   

  1. College of Petroleum Engineering, China University of Petroleum, Dongying 257061, China
  • Received:2005-01-20 Revised:2005-04-04 Online:2006-01-25 Published:2010-05-21

摘要: 以新研制的多功能聚醚多元醇SYP-1为主剂,对聚合物包被剂、防塌剂和降滤失剂进行了优选实验.在此基础上,研制了一种新型的聚醚多元醇钻井液.对聚醚多元醇钻井液的抑制性、流变性、滤失造壁性、润滑性以及对油气层的保护性能进行了室内评价实验,并分析了该钻井液的作用机理.在LN3-6H井和HD4-23H井进行的聚醚多元醇钻井液现场试验表明,在钻进过程中井壁稳定,井径规则,起、下钻畅通,井下安全,测井、下套管及固井作业顺利.室内实验和现场应用表明,聚醚多元醇钻井液具有优良的防塌性和润滑性,能有效地抑制岩屑分散,起到稳定井壁和保护油气层的作用,满足复杂地质条件下钻井的需要.

关键词: 聚醚多元醇钻井液;润滑性;流变性;井眼稳定性;油气层保护;现场试验

Abstract: Taking the new polyether polyatomic alcohol SYP-1 as the main agent,the coater,filtrate reducer and shale-control agent of polymer were optimally selected to develop a new drilling fluid.The properties including inhibition,mud filtrate control capacity,rheology,lubricity and formation protection ability of the new drilling fluid were evaluated in laboratory.The functional mechanism of the drilling fluid was briefly investigated.The field tests were made in LN3-6H Well and HD4-23H Well.During the process of drilling,the borehole wall was stable,and the hole diameter was regular.The electric logging,casing running and cementing operation were successful.Laboratory tests and field application indicate that this kind of drilling fluid has the advantages of excellent inhibition,lubricity,anti-sloughing,formation protection properties and convenience for field maintenance and treatment.The successful application demonstrates that the polyether polyatomic alcohol drilling fluid can meet the requirements of drilling in complex formation.

Key words: polyether polyatomic alcohol drilling fluid, lubricity, rheology, borehole stability, formation protection, field test

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